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Finding the Fourth Proportional to 5,663.32, 7,811.22 and 3,305.32

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Solution

The fourth proportional to 5,663.32, 7,811.22 and 3,305.32 is: 4,558.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,663.32 : 7,811.22 = 3,305.32 : x
  2. Step 2: Convert to fraction form
    5,663.32/7,811.22 = 3,305.32/x
  3. Step 3: Cross multiply
    5,663.32x = 7,811.22 × 3,305.32
  4. Step 4: Simplify right side
    5,663.32x = 25,818,581.69
  5. Step 5: Solve for x
    x = 25,818,581.69/5,663.32
  6. Step 6: Final answer
    x = 4,558.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.